Defensive publication



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Office makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED DECEMBER 16, 1969 T869,008 ALKEN-w-YNYL PHOSPHINATE SYNERGISTS FOR CYCLOPROPANE-CARBOXYLATE INSECTICIDES Ronald Eugene Montgomery, 46 S. Vernon St., Middleport, N.Y. 10940, and Harry Hobart Incho, 137 Ensign Ave., Medina, N.Y. 14103 Filed Mar. 27, 1969, Ser. No. 811,222

' Int. 'Cl. A01n 9/36, 9/02 US. Cl. 424219 No Drawing. 14 Pages Specification Synergistic insecticidal combinations of esters of cyclopropanecarboxylic acids, such as pyrethrins, allethrin, (1- cyc10hexene-l,2 dicarboximido)methyl chrysanthemumate, (5-benzyl-3-furyl)methyl 2,2,3,3-tetramethylcyclopropanecarboxylate and (5-benzyl-3-furyl)methyl chrysanthemumate, with certain 2-penten-4-ynyl diaryl phosphinates, as synergists, are described. The synergistic phosphinates have the general formula:

wherein Y and Z may each be halogen ormethyl; m and n may each be an integer of 0 to 2 inclusive; and r and s may each be an integer of 0 to l inclusive. The preparation of 2-penten-4-ynyl diphenylphosphinate, M.P. 83.5- 855; and the synergistic activity of said phosphinate with representative chrysanthemumate insecticides, are described in detail. 

